Patents by Inventor Dennis G. Jackson

Dennis G. Jackson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8928325
    Abstract: An apparatus and process is provided for detecting elemental mercury in soil. A sacrificial electrode of aluminum is inserted below ground to a desired location using direct-push/cone-penetrometer based equipment. The insertion process removes any oxides or previously found mercury from the electrode surface. Any mercury present adjacent the electrode can be detected using a voltmeter which indicates the presence or absence of mercury. Upon repositioning the electrode within the soil, a fresh surface of the aluminum electrode is created allowing additional new measurements.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: January 6, 2015
    Assignee: Savannah River Nuclear Solutions, LLC
    Inventor: Dennis G. Jackson
  • Patent number: 8770891
    Abstract: The process of treating elemental mercury within the soil is provided by introducing into the soil a heated vapor phase of elemental sulfur. As the vapor phase of elemental sulfur cools, sulfur is precipitated within the soil and then reacts with any elemental mercury thereby producing a reaction product that is less hazardous than elemental mercury.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: July 8, 2014
    Assignee: Savannah River Nuclear Solutions, LLC
    Inventors: Brian B. Looney, Miles E. Denham, Dennis G. Jackson
  • Publication number: 20130287497
    Abstract: The process of treating elemental mercury within the soil is provided by introducing into the soil a heated vapor phase of elemental sulfur. As the vapor phase of elemental sulfur cools, sulfur is precipitated within the soil and then reacts with any elemental mercury thereby producing a reaction product that is less hazardous than elemental mercury.
    Type: Application
    Filed: April 25, 2012
    Publication date: October 31, 2013
    Applicant: Savannah River Nuclear Solutions, LLC
    Inventors: Brian B. Looney, Miles E. Denham, Dennis G. Jackson
  • Publication number: 20130147489
    Abstract: An apparatus and process is provided for detecting elemental mercury in soil. A sacrificial electrode of aluminum is inserted below ground to a desired location using direct-push/cone-penetrometer based equipment. The insertion process removes any oxides or previously found mercury from the electrode surface. Any mercury present adjacent the electrode can be detected using a voltmeter which indicates the presence or absence of mercury. Upon repositioning the electrode within the soil, a fresh surface of the aluminum electrode is created allowing additional new measurements.
    Type: Application
    Filed: December 8, 2011
    Publication date: June 13, 2013
    Applicant: Savannah River Nuclear Solutions, LLC
    Inventor: Dennis G. Jackson
  • Patent number: 7350428
    Abstract: A gas sampling apparatus and process is provided in which a standard crimping tool is modified by an attached collar. The collar permits operation of the crimping tool while also facilitating the introduction of a supply of gas to be introduced into a storage vial. The introduced gas supply is used to purge ambient air from a collection chamber and an interior of the sample vial. Upon completion of the purging operation, the vial is sealed using the crimping tool.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: April 1, 2008
    Assignee: Westinghouse Savannah River Company LLC
    Inventors: Dennis G. Jackson, Kurt D. Peterson, Brian D. Riha
  • Patent number: 6971820
    Abstract: A gas exchange apparatus is provided which provides for both passive fluid flow and blower associated fluid flow through a barometric valve. A battery powered blower is provided which allows for operation of the barometric valve during times when the barometric valve would otherwise be closed, and provides for enhanced volume of gas exchange.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: December 6, 2005
    Assignee: Westinghouse Savannah River Company
    Inventors: Joseph Rossabi, Warren K. Hyde, Brian D. Riha, Dennis G. Jackson, Frank Sappington
  • Publication number: 20040190994
    Abstract: A gas exchange apparatus is provided which provides for both passive fluid flow and blower associated fluid flow through a barometric valve. A battery powered blower is provided which allows for operation of the barometric valve during times when the barometric valve would otherwise be closed, and provides for enhanced volume of gas exchange.
    Type: Application
    Filed: March 28, 2003
    Publication date: September 30, 2004
    Inventors: Joseph Rossabi, Warren K. Hyde, Brian D. Riha, Dennis G. Jackson, Frank Sappington
  • Patent number: 6591700
    Abstract: A system for improving the Baroball valve and a method for retrofitting an existing Baroball valve. This invention improves upon the Baroball valve by reshaping the interior chamber of the valve to form a flow meter measuring chamber. The Baroball valve sealing mechanism acts as a rotameter bob for determining mass flow rate through the Baroball valve. A method for retrofitting a Baroball valve includes providing static pressure ports and connecting a measuring device, to these ports, for measuring the pressure differential between the Baroball chamber and the well. A standard curve of nominal device measurements allows the mass flow rate to be determined through the retrofitted Baroball valve.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: July 15, 2003
    Assignee: Westinghouse Savannah River Company, LLC
    Inventors: Dennis G. Jackson, Joseph Rossabi, Brian D. Riha
  • Patent number: 6425298
    Abstract: A system for improving the Baroball valve and a method for retrofitting an existing Baroball valve. This invention improves upon the Baroball valve by reshaping the interior chamber of the valve to form a flow meter measuring chamber. The Baroball valve sealing mechanism acts as a rotameter bob for determining volume flow rate through the Baroball valve. A method for retrofitting a Baroball valve includes providing static pressure ports and connecting a measuring device, to these ports, for measuring the pressure differential between the Baroball chamber and the well. A standard curve of nominal device measurements allows the volume flow rate to be determined through the retrofitted Baroball valve.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: July 30, 2002
    Assignee: Westinghouse Savannah River Company, LLC
    Inventors: Dennis G. Jackson, Joseph Rossabi, Brian D. Riha
  • Publication number: 20020023505
    Abstract: A system for improving the Baroball valve and a method for retrofitting an existing Baroball valve. This invention improves upon the Baroball valve by reshaping the interior chamber of the valve to form a flow meter measuring chamber. The Baroball valve sealing mechanism acts as a rotameter bob for determining mass flow rate through the Baroball valve. A method for retrofitting a Baroball valve includes providing static pressure ports and connecting a measuring device, to these ports, for measuring the pressure differential between the Baroball chamber and the well. A standard curve of nominal device measurements allows the mass flow rate to be determined through the retrofitted Baroball valve.
    Type: Application
    Filed: February 17, 2000
    Publication date: February 28, 2002
    Inventors: Dennis G. Jackson, Joseph Rossabi, Brian D. Riha
  • Publication number: 20010035057
    Abstract: A system for improving the Baroball valve and a method for retrofitting an existing Baroball valve. This invention improves upon the Baroball valve by reshaping the interior chamber of the valve to form a flow meter measuring chamber. The Baroball valve sealing mechanism acts as a rotameter bob for determining mass flow rate through the Baroball valve. A method for retrofitting a Baroball valve includes providing static pressure ports and connecting a measuring device, to these ports, for measuring the pressure differential between the Baroball chamber and the well. A standard curve of nominal device measurements allows the mass flow rate to be determined through the retrofitted Baroball valve.
    Type: Application
    Filed: February 1, 2001
    Publication date: November 1, 2001
    Inventors: Dennis G. Jackson, Joseph Rossabi, Brian D. Riha
  • Patent number: 6280625
    Abstract: A method and apparatus for the treatment and remediation of a contaminated aquifer in the presence of an uncontaminated aquifer at a different hydraulic potential. The apparatus consists of a wellbore inserted through a first aquifer and into a second aquifer, an inner cylinder within the wellbore is supported and sealed to the wellbore to prevent communication between the two aquifers. Air injection is used to sparge the liquid having the higher static water level and, to airlift it to a height whereby it spills into the inner cylinder. The second treatment area provides treatment in the form of aeration or treatment with a material. Vapor stripped in sparging is vented to the atmosphere. Treated water is returned to the aquifer having the lower hydraulic potential.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: August 28, 2001
    Assignee: Westinghouse Savannah River Company
    Inventors: Dennis G. Jackson, Jr., Brian B. Looney, Ralph L. Nichols, Mark A. Phifer